CN111057464B - Single-color-changing irreversible temperature indicating coating and preparation method thereof - Google Patents
Single-color-changing irreversible temperature indicating coating and preparation method thereof Download PDFInfo
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- CN111057464B CN111057464B CN201911291475.XA CN201911291475A CN111057464B CN 111057464 B CN111057464 B CN 111057464B CN 201911291475 A CN201911291475 A CN 201911291475A CN 111057464 B CN111057464 B CN 111057464B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/26—Thermosensitive paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
- C08K2003/3036—Sulfides of zinc
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention aims to provide a solid-phase reaction type single-color-change irreversible temperature indicating coating and a preparation method thereof. Can solve the technical defect that the reaction type single-discoloration irreversible temperature indicating coating can not resist low temperature for a long time. The invention coats one reactant in the reactive single-color-changing irreversible temperature indicating coating, so that the coating can be used for a long time at the temperature below the melting point of the coating and does not change color, and the coating can change color rapidly after the temperature of a measured object reaches the specified temperature.
Description
Technical Field
The invention relates to the field of coatings, and particularly provides a single-discoloration irreversible temperature indicating coating and a preparation method thereof.
Background
The single-color-changing irreversible temperature indicating coating refers to a coating which has obvious and macroscopic color change in the continuous temperature increasing process, and the process is irreversible. The temperature measuring device is mainly used for temperature measurement and overtemperature warning of workpieces with temperatures. At present, the color change schemes of the single-color-change irreversible temperature indicating paint on the market are mainly two: one is to adopt organic pigment which is not high temperature resistant and can be rapidly decomposed at a certain temperature to cause the color of the coating to generate irreversible change; the other is to use solid phase reaction of the substances, i.e. to generate new substances with different colors by the reaction of the two substances to realize the irreversible change of the color of the coating.
The prepared single-color-changing irreversible temperature indicating coating can change color when reaching a specified temperature under the condition of a specific temperature rise rate no matter adopting the pyrolysis principle of organic pigments or the solid-phase reaction principle of substances. The coatings cannot withstand low temperatures for long periods of time, i.e., maintaining a temperature below the color change point for a sufficient period of time can result in discoloration of the coating. Therefore, the application of the single-color-change irreversible temperature indicating coating is limited.
Disclosure of Invention
The invention aims to provide a solid-phase reaction type single-color-change irreversible temperature indicating coating and a preparation method thereof. Can solve the technical defect that the reaction type single-discoloration irreversible temperature indicating coating can not resist low temperature for a long time.
The paint had the following composition:
wherein, the composition of the coated reactant A is as follows:
composition in% by mass
20.0-50.0 of reactant A
50.0-80.0% of coating material
The reactant A is: one or two of sodium sulfide and zinc sulfide;
the coating substance is; any one of arachidic acid, azelaic acid, triacontanol, tribenzylamine, sebacic acid, suberic acid;
the reactant B is: basic lead carbonate and/or lead carbonate;
the filler is as follows: any one or more of talcum powder, titanium dioxide and mica powder;
the pigment is as follows: any one or more of cobalt green, apple green and phthalocyanine green;
the resin is: any one or more of commercially available epoxy modified organic silicon resin, acrylic acid modified organic silicon resin and organic silicon resin, wherein the solid content of the resin is 50%;
the solvent is any one or more of dimethylbenzene and n-butyl alcohol.
Method for coating reactant A
Accurately weighing the coating substance, adding the weighed coating substance into a beaker with a stirring device, heating until the coating substance is completely melted into a liquid state, starting stirring, slowly adding the reactant A, continuously stirring for 1-2 h, stopping heating and stirring, and naturally cooling to room temperature.
And (4) taking out the blocks in the beaker, crushing for 5-30 s by using a small laboratory crusher, and then sieving by using a 80-mesh sieve.
Adding the sieved substances into a beaker, repeatedly washing and filtering by using deionized water until the conductivity of the washing liquid is basically the same as that of the deionized water, taking out and airing for later use.
Method for producing lacquer
Weighing all materials according to the formula, adding the materials into a quick-handle bottle, adding glass beads accounting for 80% of the total mass of the materials, dispersing for 0.5-1 h by using a quick-handle dispersion machine, filtering and discharging to obtain the single-color-changing irreversible temperature indicating coating.
The invention coats one reactant in the reactive single-color-changing irreversible temperature indicating coating, so that the coating can be used for a long time at the temperature below the melting point of the coating and does not change color, and the coating can change color rapidly after the temperature of a measured object reaches the specified temperature.
Detailed Description
Example 1:
accurately weighing 50.0g of arachidic acid, adding the weighed arachidic acid into a 500ml beaker with a stirring device, heating until the arachidic acid is completely melted into a liquid state, starting stirring, slowly adding 50.0g of accurately weighed sodium sulfide, continuously stirring for 2h, stopping heating and stirring, and naturally cooling to room temperature.
The cake in the beaker was removed, crushed for 30 seconds using a laboratory mini-crusher and then sieved through an 80 mesh screen. Adding the substance below the screen into a beaker, repeatedly washing and filtering by using deionized water until the conductivity of the washing liquid is basically the same as that of the deionized water, taking out and airing for later use.
Weighing 10.0g of arachidic acid-coated sodium sulfide, 15.0g of basic lead carbonate, 1.0g of talcum powder, 1.0g of cobalt green, 25.0g of epoxy modified organic silicon resin and 48.0g of n-butyl alcohol according to the formula ratio, adding into a quick-handle bottle, adding 80.0g of glass beads (3-4mm), dispersing for 0.5h by using a quick handle, filtering and discharging to obtain the single-color-change irreversible temperature indicating paint 1.
Example 2:
60.0g of azelaic acid is accurately weighed, the weighed azelaic acid is added into a 500ml beaker with a stirring device, stirring is started after the azelaic acid is completely melted into a liquid state, 40.0g of accurately weighed sodium sulfide is slowly added, heating and stirring are stopped after continuous stirring is carried out for 2h, and the mixture is naturally cooled to room temperature.
The cake in the beaker was removed, crushed for 30 seconds using a laboratory mini-crusher and then sieved through an 80 mesh screen. Adding the substance below the screen into a beaker, repeatedly washing and filtering by using deionized water until the conductivity of the washing liquid is basically the same as that of the deionized water, taking out and airing for later use.
Weighing 12.0g of azelaic acid coated sodium sulfide, 20.0g of basic lead carbonate, 2.0g of talcum powder, 25.0g of epoxy modified organic silicon resin, 21.0g of dimethylbenzene and 20.0g of n-butyl alcohol according to the formula ratio, adding into a quick-handle bottle, adding 80.0g of glass beads (3-4mm), dispersing for 0.5h by using a quick hand, filtering and discharging to obtain the single-discoloration irreversible thermopaint 2.
Example 3:
accurately weighing 70.0g of triacontanol, adding the weighed triacontanol into a 500ml beaker with a stirring device, heating until the triacontanol is completely melted into a liquid state, starting stirring, slowly adding 30.0g of accurately weighed zinc sulfide, continuously stirring for 2h, stopping heating and stirring, and naturally cooling to room temperature.
The cake in the beaker was removed, crushed for 20s using a laboratory mini-crusher and then sieved through an 80 mesh screen. Adding the substance below the screen into a beaker, repeatedly washing and filtering by using deionized water until the conductivity of the washing liquid is basically the same as that of the deionized water, taking out and airing for later use.
Weighing 15.0g of zinc sulfide coated by triacontanol, 25.0g of basic lead carbonate, 1.0g of titanium dioxide, 0.5g of phthalocyanine green, 10.0g of acrylic acid modified organic silicon resin and 48.5g of dimethylbenzene according to the formula ratio, adding the mixture into a quick-handle bottle, adding 80.0g of glass beads (3-4mm), dispersing for 0.5h by using a quick handle, filtering and discharging to obtain the single-color-change irreversible temperature indicating paint 3.
Example 4:
accurately weighing 80.0g of sebacic acid, adding the weighed sebacic acid into a 500ml beaker with a stirring device, heating until the sebacic acid is completely melted into a liquid state, starting stirring, slowly adding 20.0g of accurately weighed sodium sulfide, continuously stirring for 2h, stopping heating and stirring, and naturally cooling to room temperature.
The cake in the beaker was removed, crushed for 10s using a laboratory mini-crusher and then sieved through an 80 mesh screen. Adding the substance below the screen into a beaker, repeatedly washing and filtering by using deionized water until the conductivity of the washing liquid is basically the same as that of the deionized water, taking out and airing for later use.
Weighing 20.0g of sodium sulfide coated by sebacic acid, 30.0g of lead carbonate, 5.0g of mica powder, 5.0g of apple green, 20.0g of organic silicon resin and 20.0g of dimethylbenzene according to the formula, adding the materials into a quick-handle bottle, adding 80.0g of glass beads (3-4mm), dispersing for 0.5h by using a quick handle, filtering and discharging to obtain the single-color-changing irreversible temperature indicating paint 4.
The low temperature resistance and the discoloration property of the single-discoloration irreversible thermopaint are shown in table 1:
note: the maximum working temperature of the coating is: the highest temperature at which the paint can be used for a long time and the color of the paint does not change. The examination requirements are as follows: the coating did not change color after 500h at this temperature.
Claims (4)
1. A solid phase reaction type single-color-changing irreversible temperature indicating coating is characterized by comprising the following components:
mass percent of the Components (%)
10.0 to 20.0 parts of a coated reactant A
15.0-30.0% of reactant B
0.0-10.0% of filler
0.0 to 5.0 parts by weight of a pigment
10.0 to 25.0 parts of resin
10.0-65.0% of solvent
Wherein, the composition of the coated reactant A is as follows:
composition in% by mass
20.0-50.0 of reactant A
50.0 to 80.0 parts of a coating material,
the reactant A is any one or two of sodium sulfide and zinc sulfide, and the coating substance is; any one of arachidic acid, azelaic acid, triacontanol, tribenzylamine, sebacic acid and suberic acid, wherein the reactant B is: basic lead carbonate and/or lead carbonate; the resin is: any one or more of commercially available epoxy modified organic silicon resin, acrylic acid modified organic silicon resin and organic silicon resin, wherein the solid content of the resin is 50%; the solvent is any one or more of dimethylbenzene and n-butyl alcohol; the coating method of the reactant A comprises the following steps: accurately weighing the coating material, adding the weighed coating material into a beaker with a stirring device, heating until the coating material is completely melted into a liquid state, starting stirring, slowly adding the reactant A, continuously stirring for 1-2 h, stopping heating and stirring, naturally cooling to room temperature, taking out the block in the beaker, crushing for 5-30 s by using a small laboratory crusher, sieving by using a 80-mesh sieve, adding the sieved material into the beaker, repeatedly washing and filtering by using deionized water until the conductivity of the washing liquid is basically the same as that of the deionized water, taking out, airing and reserving for later use.
2. The solid-phase reactive type single-color-change irreversible thermopaint as claimed in claim 1, wherein the filler is: any one or more of talcum powder, titanium dioxide and mica powder.
3. The solid-phase reaction type single-color-change irreversible thermopaint as claimed in claim 1, wherein the pigment is: any one or more of cobalt green, apple green and phthalocyanine green.
4. The preparation method of the solid-phase reaction type single-discoloration irreversible thermopaint according to claim 1, wherein all materials are weighed according to the formula amount, added into a quick-handle bottle, added with glass beads accounting for 80% of the total mass of the materials, dispersed for 0.5-1 h by using a quick handle, filtered and discharged, and the single-discoloration irreversible thermopaint is prepared.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291475.XA CN111057464B (en) | 2019-12-16 | 2019-12-16 | Single-color-changing irreversible temperature indicating coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291475.XA CN111057464B (en) | 2019-12-16 | 2019-12-16 | Single-color-changing irreversible temperature indicating coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN111057464A CN111057464A (en) | 2020-04-24 |
| CN111057464B true CN111057464B (en) | 2021-12-14 |
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| CN201911291475.XA Active CN111057464B (en) | 2019-12-16 | 2019-12-16 | Single-color-changing irreversible temperature indicating coating and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373168A (en) * | 2001-02-28 | 2002-10-09 | 明碁电通股份有限公司 | Allochroic ink composition sensitive to temp |
| WO2010022353A1 (en) * | 2008-08-21 | 2010-02-25 | Innova Meterials, Llc | Enhanced surfaces, coatings, and related methods |
| CN101705051A (en) * | 2008-12-30 | 2010-05-12 | 北方涂料工业研究设计院 | Production method of 150-500 DEG C pleochromatic irreversible thermopaint |
| CN104031552A (en) * | 2013-03-06 | 2014-09-10 | 常州市冠龙化工有限公司 | High temperature resistant and anticorrosion color-variable paint |
| CN107828268A (en) * | 2017-11-10 | 2018-03-23 | 江苏视客新材料股份有限公司 | Spiro-pyrans class photochromic coating and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0121427D0 (en) * | 2001-09-05 | 2001-10-24 | Rolls Royce Plc | A temperature indicating paint |
| CN103911069A (en) * | 2012-12-31 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Irreversible temperature indicating paint for brake discs and preparation method thereof |
| CN105860827B (en) * | 2015-12-09 | 2019-01-25 | 中昊北方涂料工业研究设计院有限公司 | 1100 DEG C of -1350 DEG C of color variable irreversible temperature indicating paints |
-
2019
- 2019-12-16 CN CN201911291475.XA patent/CN111057464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373168A (en) * | 2001-02-28 | 2002-10-09 | 明碁电通股份有限公司 | Allochroic ink composition sensitive to temp |
| WO2010022353A1 (en) * | 2008-08-21 | 2010-02-25 | Innova Meterials, Llc | Enhanced surfaces, coatings, and related methods |
| CN101705051A (en) * | 2008-12-30 | 2010-05-12 | 北方涂料工业研究设计院 | Production method of 150-500 DEG C pleochromatic irreversible thermopaint |
| CN104031552A (en) * | 2013-03-06 | 2014-09-10 | 常州市冠龙化工有限公司 | High temperature resistant and anticorrosion color-variable paint |
| CN107828268A (en) * | 2017-11-10 | 2018-03-23 | 江苏视客新材料股份有限公司 | Spiro-pyrans class photochromic coating and preparation method thereof |
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| CN111057464A (en) | 2020-04-24 |
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